Take a look around. Do you see any Certificates of Training
like from I-CAR or SAE, Technical Schools etc.

Take Notice if the office personnel are quick to assist customers
(A definite sign of management training properly.

Then ask how they do their prep work for bed liners.If they say power sanding; that’s good. They “Chemical Etching”; That’s bad. Leave NOW!

Ask if they’re installing bed liners for any local new truck dealerships.
If they do truck bed liners for even 2 or 3 New Truck dealers, you’ve probably found a good installer.

Now that you’ve found an outfit that will prep right and applies correctly so you get a long lasting high-quality Rhino Lining Spray In Liner in your truck bed, maybe we ought to see just how tough this Rhino Lining stuff is; Ya think?